4(j)-7=9

Add 7 to both sides of the equation and you get
4 j = 16
Now divide both sides of the equation by 4 and you will find out what the value of j is.

Whenever you perform the same mathematical operation on both sides of an equation, you end up with another equation that is valid.

To solve the equation 4(j) - 7 = 9, you want to isolate the variable "j" on one side of the equation.

Step 1: Add 7 to both sides of the equation.
4(j) - 7 + 7 = 9 + 7
This simplifies to:
4(j) = 16

Step 2: Divide both sides of the equation by 4.
(4(j))/4 = 16/4
This simplifies to:
j = 4

The solution to the equation 4(j) - 7 = 9 is j = 4.